CHAPTER 1: INTRODUCTION
SPECIFICATIONS
MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL
1–9
Communications specifications
ETHERNET (COPPER)
Modes:......................................................................10/100 MB (auto-detect)
Connector:..............................................................RJ-45
SNTP clock synchronization error: ..............<200 ms (typical)
Protocol: ..................................................................Modbus TCP
RS485 PORT
Port: ...........................................................................opto-isolated
Baud rates:.............................................................up to 115 kbps
Protocol: ..................................................................Modbus RTU, half-duplex
Maximum distance: ...........................................1200 m
Isolation:..................................................................2 kV
USB PORT
Standard specification:....................................Compliant with both USB 2.0 and USB 1.1
Data transfer rate:..............................................USB device emulating serial communications port at
115 kbps
Connector:..............................................................USB2.0 Mini-B
Testing and certification
TESTING AND CERTIFICATION
Test
Reference Standard
Test Level
Dielectric Voltage Withstand:
EN60255-5
2.0 KV
Impulse Voltage Withstand:
EN60255-5
5 KV
Insulation Resistance:
EN60255-5
500 V DC > 100 Mohm
Damped Oscillatory:
IEC61000-4-18/IEC60255-22-1
2.5 KV CM, 1 KV DM
Electrostatic Discharge:
EN61000-4-2/IEC60255-22-2
Level 4
RF Immunity:
EN61000-4-3/IEC60255-22-3
Level 3
Fast Transient Disturbance:
EN61000-4-4/IEC60255-22-4
Level 4
Surge Immunity:
EN61000-4-5/IEC60255-22-5
Level 3 & 4
Conducted RF Immunity:
EN61000-4-6/IEC60255-22-6
Level 3
Power magnetic Immunity:
IEC61000-4-8
Level 4
Voltage Dip & Interruption:
IEC61000-4-11
0,40,70% dips 250/300cycle
interrupts
Radiated & Conducted Emissions: CISPR11 /CISPR22/ IEC60255-25
Class A
Ingress Protection:
IEC60529
IP20 (base unit) IP54 (Control
Panel)
Environmental (Cold):
IEC60068-2-1
-20
o
C 16 hrs
Environmental (Dry heat):
IEC60068-2-2
85
o
C 16hrs
Relative Humidity Cyclic:
IEC60068-2-30
6-day variant 2
Fast Transient Disturbance:
IEEE C37.90.1
4 KV CM & DM
SWC Damped Oscillatory:
IEEE C37.90.1
2.5 KV CM
Electrostatic Discharge:
IEEE C37.90.3
8 KV CD, 15 KV AD
